TPI November 2020

Tube welding technology

Tube welding technology

Tube makers have mastered welding set-ups for rotation, dwell and penetration parameters, different for each size of tubing. They know how to regulate a power supply for welding current, primary and background amperes, weld bead overlap, and for delay of rotation at the start of the weld and current downslope at the end. They share with welders a zeal amounting to passion for a clean cut-off operation with

smooth surfaces. For as long as welding is the method by which tube and pipe are joined, the advances that lie ahead for the two already highly developed technologies will be made in tandem. In the meantime, this partnership of equals acknowledges a common obligation: to provide perfect leak-tight joints having uniform circumferential weld strength to the automotive and machine tool industries of the world.